Developer cartridge



FIG. 1 is a right front perspective view of a developer cartridge showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof, on a larger scale; and

FIG. 7 is a right side elevational view thereof on a larger scale. 

The ornamental design for a developer cartridge as shown. 